Is Moss Bad for Your Roof? How to Remove or Prevent It from Growing

Is Moss Bad for Your Roof? How to Remove or Prevent It from Growing

Moss growing on your roof may seem picturesque, but it can actually be detrimental to its health. In the damp climate of regions like St. Louis, moss thrives on roofs, especially on shaded areas where moisture accumulates. Understanding the impact of moss and how to manage it is crucial for maintaining the integrity of your roof.

The Risks of Moss on Your Roof

1. Water Damage

Moss retains moisture, which can seep into your roof’s shingles and underlayment. Over time, this moisture can lead to rotting of the roof deck and structural damage.

2. Shingle Damage

As moss grows, it can lift shingles or tiles, compromising their seal and allowing water to penetrate beneath them. This can accelerate the deterioration of your roof’s materials.

3. Aesthetic Concerns

Aside from functional issues, moss can detract from your home’s curb appeal. It gives the roof a neglected appearance and may reduce the overall value of your property.

How to Remove Moss from Your Roof

1. Gentle Cleaning

Use a soft brush or broom to gently scrub away moss from the roof surface. Avoid using pressure washers, as they can damage shingles and force water under them.

2. Moss Killers

Apply a commercially available moss killer or a homemade solution like vinegar or hydrogen peroxide to effectively kill moss. Follow product instructions carefully to ensure safety and effectiveness.

3. Zinc Strips

Installing zinc or copper strips near the ridge of your roof can help prevent moss growth. When it rains, trace amounts of these metals wash down the roof, inhibiting moss and algae growth.

4. Trimming Trees

Keep nearby trees trimmed to reduce shade and allow more sunlight to reach your roof. Sunlight helps dry out the roof surface and inhibit moss growth.

Preventing Moss Growth

1. Ensure Proper Drainage

Keep gutters clean and ensure they are free of debris to prevent water from pooling on your roof.

2. Trim Overhanging Branches

Trim branches that hang over your roof to reduce shade and minimize debris buildup, which can contribute to moss growth.

3. Regular Inspections

Schedule regular inspections with Tesson Roofing to catch moss growth early and address any underlying issues before they escalate.

Introducing Roof Renew

In addition to preventing moss growth, Tesson Roofing offers an innovative solution to rejuvenate your roof and extend its lifespan: Roof Renew. This revitalization process is designed to restore dry, worn-out shingles to their former glory, providing a longer-lasting and better-looking roof for your home.

What is Roof Renew?

Roof Renew is a specialized treatment that revitalizes aging shingles by restoring flexibility and enhancing their protective properties. This process not only improves the appearance of your roof but also enhances its durability against the elements.

Benefits of Roof Renew

  • Cost-Effective: Roof Renew is a cost-effective alternative to roof replacement, saving you money while improving your roof’s performance.
  • Enhanced Appearance: The treatment revitalizes the color and texture of your shingles, giving your roof a fresh, new look.
  • Extended Lifespan: By rejuvenating your shingles, Roof Renew helps extend the lifespan of your roof, delaying the need for costly replacements.

Contact Tesson Roofing Today

Don’t let moss compromise the integrity of your roof. For expert advice on managing moss, preventing future growth, and rejuvenating your roof with Roof Renew, contact Tesson Roofing today.

Visit to learn more about Roof Renew or call (314) 932-1042 to schedule your free consultation and estimate.